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  2. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    SIM cards are identified on their individual operator networks by a unique international mobile subscriber identity (IMSI). Mobile network operators connect mobile phone calls and communicate with their market SIM cards using their IMSIs. The format is: The first three digits represent the Mobile country code (MCC).

  3. Smart card - Wikipedia

    en.wikipedia.org/wiki/Smart_card

    A smart card ( SC ), chip card, or integrated circuit card ( ICC or IC card ), is a card used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip. [1] Many smart cards include a pattern of metal contacts to electrically connect to the internal chip. Others are contactless, and some are both. Smart cards can provide ...

  4. EMV - Wikipedia

    en.wikipedia.org/wiki/EMV

    EMV is a payment method based on a technical standard for smart payment cards and for payment terminals and automated teller machines which can accept them. EMV stands for " Europay, Mastercard, and Visa ", the three companies that created the standard.

  5. Prepaid mobile phone - Wikipedia

    en.wikipedia.org/wiki/Prepaid_mobile_phone

    Prepaid mobile phone. A prepaid mobile device, also known as a pay-as-you-go ( PAYG ), pay-as-you-talk, pay and go, go-phone, prepay or burner phone, is a mobile device such as a phone for which credit is purchased in advance of service use. The purchased credit is used to pay for telecommunications services at the point the service is accessed ...

  6. Contactless smart card - Wikipedia

    en.wikipedia.org/wiki/Contactless_smart_card

    A contactless smart card is a contactless credential whose dimensions are credit card size. Its embedded integrated circuits can store (and sometimes process) data and communicate with a terminal via NFC. Commonplace uses include transit tickets, bank cards and passports. There are two broad categories of contactless smart cards.

  7. eSIM - Wikipedia

    en.wikipedia.org/wiki/ESIM

    A traditional SIM card consists of an integrated circuit located on a universal integrated circuit card (UICC), typically made of PVC, which is manually inserted into a device. By contrast, an eSIM is a virtualized SIM card profile installed onto an eUICC chip permanently surface-mounted to a mobile device at the factory.

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